Airstrikes have killed hundreds of people in the past month, including many children.

Thursday's brief cease-fire may be a small victory for the U.S. and European Union, which have demanded Russia and Syria stop bombing Aleppo. But it's well-short of the total cease-fire the West has been pushing for.

A United Nations official said Monday, "If we cannot find a solution [by December], Aleppo will not be there anymore."

Eight hours might not be enough time. The U.N. said aid convoys require 12 hours to reach those in need.